--- /dev/null
+/*
+
+ $Id$
+
+ G N O K I I
+
+ A Linux/Unix toolset and driver for Nokia mobile phones.
+
+ Released under the terms of the GNU GPL, see file COPYING for more details.
+
+ This file provides a virtual modem or "AT" interface to the GSM phone by
+ calling code in gsm-api.c. Inspired by and in places copied from the Linux
+ kernel AT Emulator IDSN code by Fritz Elfert and others.
+
+*/
+
+#define __data_at_emulator_c
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <grp.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <ctype.h>
+
+#ifndef WIN32
+
+ #include <termios.h>
+
+#endif
+
+#include "config.h"
+#include "misc.h"
+#include "gsm-common.h"
+#include "gsm-api.h"
+#include "data/at-emulator.h"
+#include "data/virtmodem.h"
+#include "data/datapump.h"
+
+#define MAX_LINE_LENGTH 256
+
+ /* Global variables */
+bool ATEM_Initialised = false; /* Set to true once initialised */
+extern bool CommandMode;
+extern int ConnectCount;
+
+char ModelName[80]; /* This seems to be needed to avoid seg-faults */
+char PortName[80];
+
+
+ /* Local variables */
+int PtyRDFD; /* File descriptor for reading and writing to/from */
+int PtyWRFD; /* pty interface - only different in debug mode. */
+
+u8 ModemRegisters[MAX_MODEM_REGISTERS];
+char CmdBuffer[MAX_CMD_BUFFERS][CMD_BUFFER_LENGTH];
+int CurrentCmdBuffer;
+int CurrentCmdBufferIndex;
+bool VerboseResponse; /* Switch betweek numeric (4) and text responses (ERROR) */
+char IncomingCallNo;
+int MessageFormat; /* Message Format (text or pdu) */
+
+ /* Current command parser */
+void (*Parser)(char *);
+//void (*Parser)(char *) = ATEM_ParseAT; /* Current command parser */
+
+GSM_MemoryType SMSType;
+int SMSNumber;
+
+ /* If initialised in debug mode, stdin/out is used instead
+ of ptys for interface. */
+bool ATEM_Initialise(int read_fd, int write_fd, char *model, char *port)
+{
+ PtyRDFD = read_fd;
+ PtyWRFD = write_fd;
+
+ strncpy(ModelName,model,80);
+ strncpy(PortName,port,80);
+
+ /* Initialise command buffer variables */
+ CurrentCmdBuffer = 0;
+ CurrentCmdBufferIndex = 0;
+
+ /* Default to verbose reponses */
+ VerboseResponse = true;
+
+ /* Initialise registers */
+ ATEM_InitRegisters();
+
+ /* Initial parser is AT routine */
+ Parser = ATEM_ParseAT;
+
+ /* Setup defaults for AT*C interpreter. */
+ SMSNumber = 1;
+ SMSType = GMT_ME;
+
+ /* Default message format is PDU */
+ MessageFormat = PDU_MODE;
+
+ /* Set the call passup so that we get notified of incoming calls */
+ GSM->DialData(NULL,-1,&ATEM_CallPassup);
+
+ /* We're ready to roll... */
+ ATEM_Initialised = true;
+ return (true);
+}
+
+ /* Initialise the "registers" used by the virtual modem. */
+void ATEM_InitRegisters(void)
+{
+
+ ModemRegisters[REG_RINGATA] = 0;
+ ModemRegisters[REG_RINGCNT] = 2;
+ ModemRegisters[REG_ESC] = '+';
+ ModemRegisters[REG_CR] = 10;
+ ModemRegisters[REG_LF] = 13;
+ ModemRegisters[REG_BS] = 8;
+ ModemRegisters[S35]=7;
+ ModemRegisters[REG_ECHO] = BIT_ECHO;
+
+}
+
+
+/* This gets called to indicate an incoming call */
+
+void ATEM_CallPassup(char c)
+{
+ if ((c >= 0) && (c < 9)) {
+ ATEM_ModemResult(MR_RING);
+ IncomingCallNo = c;
+ }
+}
+
+
+ /* Handler called when characters received from serial port.
+ calls state machine code to process it. */
+
+void ATEM_HandleIncomingData(char *buffer, int length)
+{
+ int count;
+ unsigned char out_buf[3];
+
+ for (count = 0; count < length ; count++) {
+ /* Echo character if appropriate. */
+ if (ModemRegisters[REG_ECHO] & BIT_ECHO) {
+ out_buf[0] = buffer[count];
+ out_buf[1] = 0;
+ ATEM_StringOut(out_buf);
+ }
+
+ /* If it's a command terminator character, parse what
+ we have so far then go to next buffer. */
+ if (buffer[count] == ModemRegisters[REG_CR] ||
+ buffer[count] == ModemRegisters[REG_LF]) {
+
+ CmdBuffer[CurrentCmdBuffer][CurrentCmdBufferIndex] = 0x00;
+ Parser(CmdBuffer[CurrentCmdBuffer]);
+
+ CurrentCmdBuffer++;
+ if (CurrentCmdBuffer >= MAX_CMD_BUFFERS) {
+ CurrentCmdBuffer = 0;
+ }
+ CurrentCmdBufferIndex = 0;
+ } else {
+ CmdBuffer[CurrentCmdBuffer][CurrentCmdBufferIndex] = buffer[count];
+ CurrentCmdBufferIndex++;
+ if (CurrentCmdBufferIndex >= CMD_BUFFER_LENGTH) {
+ CurrentCmdBufferIndex = CMD_BUFFER_LENGTH;
+ }
+ }
+ }
+}
+
+
+ /* Parser for standard AT commands. cmd_buffer must be null terminated. */
+void ATEM_ParseAT(char *cmd_buffer)
+{
+ char *buf;
+ char number[30];
+
+ if (strncasecmp (cmd_buffer, "AT", 2) != 0) {
+ ATEM_ModemResult(MR_ERROR);
+ return;
+ }
+
+ for (buf = &cmd_buffer[2]; *buf;) {
+ switch (toupper(*buf)) {
+
+ case 'Z':
+ buf++;
+ break;
+ case 'A':
+ buf++;
+ /* For now we'll also initialise the datapump + rlp code again */
+ DP_Initialise(PtyRDFD, PtyWRFD);
+ GSM->DialData(NULL, -1, &DP_CallPassup);
+ GSM->AnswerCall(IncomingCallNo);
+ CommandMode = false;
+ return;
+ break;
+ case 'D':
+ /* Dial Data :-) */
+ /* FIXME - should parse this better */
+ /* For now we'll also initialise the datapump + rlp code again */
+ DP_Initialise(PtyRDFD, PtyWRFD);
+ buf++;
+ if (toupper(*buf) == 'T') buf++;
+ if (*buf == ' ') buf++;
+ strncpy(number, buf, 30);
+ if (ModemRegisters[S35] == 0) GSM->DialData(number, 1, &DP_CallPassup);
+ else GSM->DialData(number, 0, &DP_CallPassup);
+ ATEM_StringOut("\n\r");
+ CommandMode = false;
+ return;
+ break;
+ case 'H':
+ /* Hang Up */
+ buf++;
+ RLP_SetUserRequest(Disc_Req, true);
+ GSM->CancelCall();
+ break;
+ case 'S':
+ /* Change registers - only no. 35 for now */
+ buf++;
+ if (memcmp(buf, "35=", 3) == 0) {
+ buf += 3;
+ ModemRegisters[S35] = *buf - '0';
+ buf++;
+ }
+ break;
+ /* E - Turn Echo on/off */
+ case 'E':
+ buf++;
+ switch (ATEM_GetNum(&buf)) {
+ case 0:
+ ModemRegisters[REG_ECHO] &= ~BIT_ECHO;
+ break;
+ case 1:
+ ModemRegisters[REG_ECHO] |= BIT_ECHO;
+ break;
+ default:
+ ATEM_ModemResult(MR_ERROR);
+ return;
+ }
+ break;
+
+ /* Handle AT* commands (Nokia proprietary I think) */
+ case '*':
+ buf++;
+ if (!strcasecmp(buf, "NOKIATEST")) {
+ ATEM_ModemResult(MR_OK); /* FIXME? */
+ return;
+ } else {
+ if (!strcasecmp(buf, "C")) {
+ ATEM_ModemResult(MR_OK);
+ Parser = ATEM_ParseSMS;
+ return;
+ }
+ }
+ break;
+
+ /* + is the precursor to another set of commands +CSQ, +FCLASS etc. */
+ case '+':
+ buf++;
+ switch (toupper(*buf)) {
+ case 'C':
+ buf++;
+ /* Returns true if error occured */
+ if (ATEM_CommandPlusC(&buf) == true) {
+ return;
+ }
+ break;
+
+ case 'G':
+ buf++;
+ /* Returns true if error occured */
+ if (ATEM_CommandPlusG(&buf) == true) {
+ return;
+ }
+ break;
+
+ default:
+ ATEM_ModemResult(MR_ERROR);
+ return;
+ }
+ break;
+
+ default:
+ ATEM_ModemResult(MR_ERROR);
+ return;
+ }
+ }
+
+ ATEM_ModemResult(MR_OK);
+}
+
+static GSM_Error ATEM_ReadSMS(int number, GSM_MemoryType type, GSM_SMSMessage *message)
+{
+ GSM_Error error;
+
+ message->MemoryType = type;
+ message->Location = number;
+ error = GSM->GetSMSMessage(message);
+
+ return error;
+}
+
+static void ATEM_PrintSMS(char *line, GSM_SMSMessage *message, int mode)
+{
+ switch (mode) {
+ case INTERACT_MODE:
+ gsprintf(line, MAX_LINE_LENGTH, _("\n\rDate/time: %d/%d/%d %d:%02d:%02d Sender: %s Msg Center: %s\n\rText: %s\n\r"), message->Time.Day, message->Time.Month, message->Time.Year, message->Time.Hour, message->Time.Minute, message->Time.Second, message->Sender, message->MessageCenter.Number, message->MessageText);
+ break;
+ case TEXT_MODE:
+ if (message->Coding==GSM_Coding_8bit)
+ gsprintf(line, MAX_LINE_LENGTH, _("\"%s\",\"%s\",,\"%02d/%02d/%02d,%02d:%02d:%02d+%02d\"\n\r%s"), (message->Status ? _("REC READ") : _("REC UNREAD")), message->Sender, message->Time.Year, message->Time.Month, message->Time.Day, message->Time.Hour, message->Time.Minute, message->Time.Second, message->Time.Timezone, _("<Not implemented>"));
+ else
+ gsprintf(line, MAX_LINE_LENGTH, _("\"%s\",\"%s\",,\"%02d/%02d/%02d,%02d:%02d:%02d+%02d\"\n\r%s"), (message->Status ? _("REC READ") : _("REC UNREAD")), message->Sender, message->Time.Year, message->Time.Month, message->Time.Day, message->Time.Hour, message->Time.Minute, message->Time.Second, message->Time.Timezone, message->MessageText);
+ break;
+ case PDU_MODE:
+ gsprintf(line, MAX_LINE_LENGTH, _("<Not implemented>"));
+ break;
+ default:
+ gsprintf(line, MAX_LINE_LENGTH, _("<Unknown mode>"));
+ break;
+ }
+}
+
+static void ATEM_EraseSMS(int number, GSM_MemoryType type)
+{
+ GSM_SMSMessage message;
+ message.MemoryType = type;
+ message.Location = number;
+ if (GSM->DeleteSMSMessage(&message) == GE_NONE) {
+ ATEM_ModemResult(MR_OK);
+ } else {
+ ATEM_ModemResult(MR_ERROR);
+ }
+}
+
+
+static void ATEM_HandleSMS()
+{
+ GSM_SMSMessage message;
+ GSM_Error error;
+ char buffer[MAX_LINE_LENGTH];
+
+ error = ATEM_ReadSMS(SMSNumber, SMSType, &message);
+ switch (error) {
+ case GE_NONE:
+ ATEM_PrintSMS(buffer, &message, INTERACT_MODE);
+ ATEM_StringOut(buffer);
+ break;
+ default:
+ gsprintf(buffer, MAX_LINE_LENGTH, _("\n\rNo message under number %d\n\r"), SMSNumber);
+ ATEM_StringOut(buffer);
+ break;
+ }
+ return;
+}
+
+ /* Parser for SMS interactive mode */
+void ATEM_ParseSMS(char *buff)
+{
+ if (!strcasecmp(buff, "HELP")) {
+ ATEM_StringOut(_("\n\rThe following commands work...\n\r"));
+ ATEM_StringOut("DIR\n\r");
+ ATEM_StringOut("EXIT\n\r");
+ ATEM_StringOut("HELP\n\r");
+ return;
+ }
+
+ if (!strcasecmp(buff, "DIR")) {
+ SMSNumber = 1;
+ ATEM_HandleSMS();
+ Parser = ATEM_ParseDIR;
+ return;
+ }
+ if (!strcasecmp(buff, "EXIT")) {
+ Parser = ATEM_ParseAT;
+ ATEM_ModemResult(MR_OK);
+ return;
+ }
+ ATEM_ModemResult(MR_ERROR);
+}
+
+ /* Parser for DIR sub mode of SMS interactive mode. */
+void ATEM_ParseDIR(char *buff)
+{
+ switch (toupper(*buff)) {
+ case 'P':
+ SMSNumber--;
+ ATEM_HandleSMS();
+ return;
+ case 'N':
+ SMSNumber++;
+ ATEM_HandleSMS();
+ return;
+ case 'D':
+ ATEM_EraseSMS(SMSNumber, SMSType);
+ return;
+ case 'Q':
+ Parser= ATEM_ParseSMS;
+ ATEM_ModemResult(MR_OK);
+ return;
+ }
+ ATEM_ModemResult(MR_ERROR);
+}
+
+ /* Handle AT+C commands, this is a quick hack together at this
+ stage. */
+bool ATEM_CommandPlusC(char **buf)
+{
+ float rflevel;
+ GSM_RFUnits rfunits = GRF_CSQ;
+ char buffer[MAX_LINE_LENGTH], buffer2[MAX_LINE_LENGTH];
+ int status, index;
+ GSM_Error error;
+ GSM_SMSMessage message;
+
+ if (strncasecmp(*buf, "SQ", 2) == 0) {
+ buf[0] += 2;
+
+ if (GSM->GetRFLevel(&rfunits, &rflevel) == GE_NONE) {
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CSQ: %0.0f, 99", rflevel);
+ ATEM_StringOut(buffer);
+ return (false);
+ } else {
+ return (true);
+ }
+ }
+ /* AT+CGMI is Manufacturer information for the ME (phone) so
+ it should be Nokia rather than gnokii... */
+ if (strncasecmp(*buf, "GMI", 3) == 0) {
+ buf[0] += 3;
+ ATEM_StringOut(_("\n\rNokia Mobile Phones"));
+ return (false);
+ }
+
+ /* AT+CGSN is IMEI */
+ if (strncasecmp(*buf, "GSN", 3) == 0) {
+ buf[0] += 3;
+ if (GSM->GetIMEI(buffer2) == GE_NONE) {
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r%s", buffer2);
+ ATEM_StringOut(buffer);
+ return (false);
+ } else {
+ return (true);
+ }
+ }
+
+ /* AT+CGMR is Revision (hardware) */
+ if (strncasecmp(*buf, "GMR", 3) == 0) {
+ buf[0] += 3;
+ if (GSM->GetRevision(buffer2) == GE_NONE) {
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r%s", buffer2);
+ ATEM_StringOut(buffer);
+ return (false);
+ } else {
+ return (true);
+ }
+ }
+
+ /* AT+CGMM is Model code */
+ if (strncasecmp(*buf, "GMM", 3) == 0) {
+ buf[0] += 3;
+ if (GSM->GetModel(buffer2) == GE_NONE) {
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r%s", buffer2);
+ ATEM_StringOut(buffer);
+ return (false);
+ } else {
+ return (true);
+ }
+ }
+
+ /* AT+CMGF is mode selection for message format */
+ if (strncasecmp(*buf, "MGF", 3) == 0) {
+ buf[0] += 3;
+ switch (**buf) {
+ case '=':
+ buf[0]++;
+ switch (**buf) {
+ case '0':
+ buf[0]++;
+ MessageFormat = PDU_MODE;
+ break;
+ case '1':
+ buf[0]++;
+ MessageFormat = TEXT_MODE;
+ break;
+ default:
+ return (true);
+ }
+ break;
+ case '?':
+ buf[0]++;
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CMGF: %d", MessageFormat);
+ ATEM_StringOut(buffer);
+ break;
+ default:
+ return (true);
+ }
+ return (false);
+ }
+
+ /* AT+CMGR is reading a message */
+ if (strncasecmp(*buf, "MGR", 3) == 0) {
+ buf[0] += 3;
+ switch (**buf) {
+ case '=':
+ buf[0]++;
+ sscanf(*buf, "%d", &index);
+ buf[0] += strlen(*buf);
+
+ error = ATEM_ReadSMS(index, SMSType, &message);
+ switch (error) {
+ case GE_NONE:
+ ATEM_PrintSMS(buffer2, &message, MessageFormat);
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CMGR: %s", buffer2);
+ ATEM_StringOut(buffer);
+ break;
+ default:
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CMS ERROR: %d\n\r", error);
+ ATEM_StringOut(buffer);
+ return (true);
+ }
+ break;
+ default:
+ return (true);
+ }
+ return (false);
+ }
+
+ /* AT+CMGL is listing messages */
+ if (strncasecmp(*buf, "MGL", 3) == 0) {
+ buf[0]+=3;
+ status = -1;
+
+ switch (**buf) {
+ case 0:
+ case '=':
+ buf[0]++;
+ /* process <stat> parameter */
+ if (*(*buf-1) == 0 || /* i.e. no parameter given */
+ strcasecmp(*buf, "1") == 0 ||
+ strcasecmp(*buf, "3") == 0 ||
+ strcasecmp(*buf, "\"REC READ\"") == 0 ||
+ strcasecmp(*buf, "\"STO SENT\"") == 0) {
+ status = GSS_SENTREAD;
+ } else if (strcasecmp(*buf, "0") == 0 ||
+ strcasecmp(*buf, "2") == 0 ||
+ strcasecmp(*buf, "\"REC UNREAD\"") == 0 ||
+ strcasecmp(*buf, "\"STO UNSENT\"") == 0) {
+ status = GSS_NOTSENTREAD;
+ } else if (strcasecmp(*buf, "4") == 0 ||
+ strcasecmp(*buf, "\"ALL\"") == 0) {
+ status = 4; /* ALL */
+ } else {
+ return true;
+ }
+ buf[0] += strlen(*buf);
+
+ /* check all message storages */
+ for (index = 1; index <= 20; index++) {
+ error = ATEM_ReadSMS(index, SMSType, &message);
+ switch (error) {
+ case GE_NONE:
+ /* print messsage if it has the required status */
+ if (message.Status == status || status == 4 /* ALL */) {
+ ATEM_PrintSMS(buffer2, &message, MessageFormat);
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CMGL: %d,%s", index, buffer2);
+ ATEM_StringOut(buffer);
+ }
+ break;
+ case GE_EMPTYSMSLOCATION:
+ /* don't care if this storage is empty */
+ break;
+ default:
+ /* print other error codes and quit */
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r+CMS ERROR: %d\n\r", error);
+ ATEM_StringOut(buffer);
+ return (true);
+ }
+ }
+ break;
+ default:
+ return (true);
+ }
+ return (false);
+ }
+
+ return (true);
+}
+
+ /* AT+G commands. Some of these responses are a bit tongue in cheek... */
+bool ATEM_CommandPlusG(char **buf)
+{
+ char buffer[MAX_LINE_LENGTH];
+
+ /* AT+GMI is Manufacturer information for the TA (Terminal Adaptor) */
+ if (strncasecmp(*buf, "MI", 3) == 0) {
+ buf[0] += 2;
+
+ ATEM_StringOut(_("\n\rHugh Blemings, Pavel JanÃk ml. and others..."));
+ return (false);
+ }
+
+ /* AT+GMR is Revision information for the TA (Terminal Adaptor) */
+ if (strncasecmp(*buf, "MR", 3) == 0) {
+ buf[0] += 2;
+ gsprintf(buffer, MAX_LINE_LENGTH, "\n\r%s %s %s", VERSION, __TIME__, __DATE__);
+
+ ATEM_StringOut(buffer);
+ return (false);
+ }
+
+ /* AT+GMM is Model information for the TA (Terminal Adaptor) */
+ if (strncasecmp(*buf, "MM", 3) == 0) {
+ buf[0] += 2;
+
+ gsprintf(buffer, MAX_LINE_LENGTH, _("\n\rgnokii configured for %s on %s"), ModelName, PortName);
+ ATEM_StringOut(buffer);
+ return (false);
+ }
+
+ /* AT+GSN is Serial number for the TA (Terminal Adaptor) */
+ if (strncasecmp(*buf, "SN", 3) == 0) {
+ buf[0] += 2;
+
+ gsprintf(buffer, MAX_LINE_LENGTH, _("\n\rnone built in, choose your own"));
+ ATEM_StringOut(buffer);
+ return (false);
+ }
+
+ return (true);
+}
+
+ /* Send a result string back. There is much work to do here, see
+ the code in the isdn driver for an idea of where it's heading... */
+void ATEM_ModemResult(int code)
+{
+ char buffer[16];
+
+ if (VerboseResponse == false) {
+ sprintf(buffer, "\n\r%d\n\r", code);
+ ATEM_StringOut(buffer);
+ } else {
+ switch (code) {
+ case MR_OK:
+ ATEM_StringOut("\n\rOK\n\r");
+ break;
+
+ case MR_ERROR:
+ ATEM_StringOut("\n\rERROR\n\r");
+ break;
+
+ case MR_CARRIER:
+ ATEM_StringOut("\n\rCARRIER\n\r");
+ break;
+
+ case MR_CONNECT:
+ ATEM_StringOut("\n\rCONNECT\n\r");
+ break;
+
+ case MR_NOCARRIER:
+ ATEM_StringOut("\n\rNO CARRIER\n\r");
+ break;
+ case MR_RING:
+ ATEM_StringOut("RING\n\r");
+ break;
+ default:
+ ATEM_StringOut(_("\n\rUnknown Result Code!\n\r"));
+ break;
+ }
+ }
+
+}
+
+
+ /* Get integer from char-pointer, set pointer to end of number
+ stolen basically verbatim from ISDN code. */
+int ATEM_GetNum(char **p)
+{
+ int v = -1;
+
+ while (*p[0] >= '0' && *p[0] <= '9') {
+ v = ((v < 0) ? 0 : (v * 10)) + (int) ((*p[0]++) - '0');
+ }
+
+ return v;
+}
+
+ /* Write string to virtual modem port, either pty or
+ STDOUT as appropriate. This function is only used during
+ command mode - data pump is used when connected. */
+void ATEM_StringOut(char *buffer)
+{
+ int count = 0;
+ char out_char;
+
+ while (count < strlen(buffer)) {
+
+ /* Translate CR/LF/BS as appropriate */
+ switch (buffer[count]) {
+ case '\r':
+ out_char = ModemRegisters[REG_CR];
+ break;
+ case '\n':
+ out_char = ModemRegisters[REG_LF];
+ break;
+ case '\b':
+ out_char = ModemRegisters[REG_BS];
+ break;
+ default:
+ out_char = buffer[count];
+ break;
+ }
+
+ write(PtyWRFD, &out_char, 1);
+ count ++;
+ }
+
+}
git://git.jankratochvil.net / gnokii.git / blobdiff